4 patents
Utility
LED illumination device having light reflecting and transmitting member
11 Jan 22
A light emitting diode illumination device includes an LED illumination tube having a light transmission plate, an LED element provided in the tube, light reflecting members extending toward a main light irradiation direction symmetrically or asymmetrically with respect to a center line of the LED element, and light intensity and distribution control means for controlling intensity and distribution of a light irradiated from the LED element.
Hidetoshi Mitsuzuka, Yujiro Kojima, Kenichi Kurihara, Kazunori Kojima, Koji Ishii
Filed: 26 Sep 17
Utility
Light-emitting diode-type illumination device
26 Oct 21
Provided is a light-emitting diode-type illumination device with which it is possible to irradiate a broad area with light irradiated from an LED light source.
Hidetoshi Mitsuzuka, Yujiro Kojima, Kenichi Kurihara, Kazunori Kojima
Filed: 26 Sep 17
Utility
Light-emitting Diode-type Illumination Device
8 Jul 20
Provided is a light-emitting diode-type illumination device with which it is possible to irradiate a broad area with light irradiated from an LED light source.
Hidetoshi Mitsuzuka, Yujiro Kojima, Kenichi Kurihara, Kazunori Kojima
Filed: 25 Sep 17
Utility
Light-emitting Diode-type Illumination Device
6 May 20
Provided is a light-emitting diode-type illumination device which controls, at a high illuminance, the illuminance of directed light emitted by an LED element as a light source.
Hidetoshi Mitsuzuka, Yujiro Kojima, Kenichi Kurihara, Kazunori Kojima, Koji Ishii
Filed: 25 Sep 17
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